Time to live (TTL) is a mechanism that limits the lifespan or lifetime of data in a computer or network
Time to live (TTL) is a mechanism that limits the lifespan or lifetime of data in a computer or network
Questions tagged [ttl]
598 questions
7
votes
2 answers
Mongodb TTL expires documents early
I am trying insert a document into a Mongo database and have it automatically expire itself after a predetermine time. So far, my document get inserted but always get deleted from the database from 0 - 60 seconds even though I set the…
fat fantasma
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7
votes
2 answers
mongodb TTL not removing documents
I have a simple schema like:
{
_id: String, // auto generated
key: String, // there is a unique index on this field
timestamp: Date() // set to current time
}
Then I set the TTL index like so:
db.sess.ensureIndex( {…
jckdnk111
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6
votes
1 answer
Time expiry dictionary in memory in Python
I was just wondering how one might efficiently implement a time expiry dictionary in memory in Python such that key-value pairs expire after a specified time interval.
kir bak
- 91
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6
votes
1 answer
Why are IP_TTL and IP_MULTICAST_TTL separate socket options?
When sending UDP multicast you can use IP_MULTICAST_TTL to set the TTL. But otherwise you would use IP_TTL. Why are these two different options in the eyes of setsockopt() and getsockopt()? Is there any situation in which setting them separately…
John Zwinck
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6
votes
2 answers
How to get TTL of a UDP packet in Java?
I am using a Java application to send UDP packets to an Android device. There I have another Java application that receives these UDP packets and displays its data - very simple.
Now I am working on some routing algorithms - therefore it would be…
mreichelt
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6
votes
1 answer
Where can I find the executed TTL commands in Mongo DB
I would like to know the logs of documents removed through TTL indexing.
I tried using db.setProfileLevel(2) and searched the db.system.profile.find({op:"remove"}).pretty(), but It returned nothing.
Can you please let me know the location of…
user4604434
- 127
- 9
6
votes
3 answers
Max value for TTL in cassandra
What is the maximum value we can assign to TTL ?
In the java driver for cassandra TTL is set as a int. Does that mean it is limited to Integer.MAX (2,147,483,647 secs) ?
mob
- 567
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6
votes
2 answers
Redis - get values of keys that match a regex
I need to save for each key, some values with different TTL.
e.g - for XXXX, values - val1(expiry time: 10),val2(expiry time: 20)
Option 1:
My best practice could be:
Use hash/sets with per-member expiry.
Unfortunately, Redis's containers ( lists,…
user2503775
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6
votes
2 answers
Cassandra - Cqlengine - TTL Support
I need to use TTL via cqlengine;
But there is no documentation about it.
Can someone help me about it.
Thanks
S.Mohamed Mahdi Ahmadian zadeh
- 2,336
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6
votes
3 answers
How to make elasticsearch document ttl work?
I installed debian package
I am able to push data using curl:
curl -XPUT 'http://mybox:9200/blog/user/dilbert' -d '{
"name": "Dilbert Brown"
}'
And fetch it
curl -XGET 'http://mybox:9200/blog/user/dilbert'
result:
{
"_index": "blog",
…
Archibald
- 1,305
- 1
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6
votes
1 answer
not getting all ICMP time-exceeded messages: why?
I'm using Scapy to replay some dumped packets in which I change the TTL value. I've been getting very odd results even with TTL=1.
When I run my test hours apart from each other, I can get from roughly 40% to 95% of packets replied to with an…
Ricky Robinson
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5
votes
2 answers
Is there any option like "Time to live" in SQL Server?
Is there any option like "Time to live" in SQL Server?
Recently I learned about Time to Live in Scylla DB. I would like to know is the option same available across the databases especially SQL Server.
I have searched in Internet but I couldn't get…
Noah
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5
votes
2 answers
Add Mongo TTL Index to Large Collection
I have a large collection in Mongo. Around 1.7 billion records that take up around 5TB of storage space. I no longer need to keep this data indefinitely so I'm looking at options for getting rid of most of the data, preferably based on…
user2708122
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5
votes
1 answer
Adding TTL to DynamoDB records via Python3 & Boto3
I have the following Pyhton3/Boto3 script that connects to a AWS DynamoDB table and attempts to set a 19-day TTL on all its records by looping through them:
#!/usr/bin/env python3
import boto3
import sys
from datetime import datetime, timedelta
from…
hotmeatballsoup
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5
votes
2 answers
Update ttl for all records in aerospike
I was stuck in a situation that I have initialised a namesapce with
default-ttl to 30 days. There was about 5 million data with that (30-day calculated) ttl-value. Actually, my requirement is that ttl should be zero(0), but It(ttl-30d) was kept…
chikku
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